Just after midnight, deputies responded to a call of a person screaming in the 1600 block of 88th Street. Upon arrival, deputies found the child had multiple stab wounds on his upper torso. Deputies administered life-saving efforts to try and save the boy, then rushed him to St. Francis Hospital where he succumbed to his injuries...

According to witnesses, the boy's father, Alejandro Sanchez, was screaming incoherently and was covered in blood. The boy was found inside the mobile home that the two shared.

After questioning, deputies said Alejandro Sanchez-Santoyo was arrested on suspicion of murder. He is being held on $1 million bail...

Sanchez said she had spoken several times to her brother about taking custody of her nephew because her brother was often away, but he always refused. She said Nathans mother died five days after he was born. This is a double heartbreak, Sanchez said.

Six houses away, Quintero, 50, described Nathan Sanchez as a happy, outgoing and curious child. He couldnt sit still for a moment, she said. Im terribly sad over this. She said the boy attended Parmelee Avenue Elementary School and recalled taking the child to Disneyland in May. It was his first trip to the amusement park. He didnt want to leave, she said. He was so happy.

A father who stabbed his 6-year-old son to death last year was sentenced Monday to 16 years to life in prison.

Alejandro Sanchez, 39, pleaded no contest in June to second-degree murder and using a knife in killing his 6-year-old boy, Nathan Sanchez, inside a small white trailer behind their home in South L.A. in June 2014.

Sanchez was under the influence of methamphetamine when he killed his son, prosecutors said.